oh it isn't your drivers then it's the game settings.... so i am assuming that Counter Strike does this too?
Try this if there are sounds setting uncheck the following options
EAX Hardware Support
A3D Hardware Support
and try changing the sound settings to low and here is the link for you Mother board sound card drivers off asus http://www.asus.com/support/download...50.zip~zaqwedc
Tryed..
But good for me i am a certified A+ techinician..
i killed all posible reasons and found the source of my problem.
it was my graficks card driver. i remember it alll started after i installed the newer drivers for my card.. i unistalled and installed older ones and it works now